Khan/khan-exercises — Issue #5016: Units - Icon disappear in knowledge map
Author: KhanBugz
Created: 2011-10-26 04:26:43+00:00
State: open
Labels: firefox, win7

icon for Unit lesson disappear in the knowledge map

[units.html?seed=154&problem=metric](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/units.html?seed=154&problem=metric&debug)

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Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1

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